A crater is a landform consisting of a hole or depression on a planetary surface, usually caused either by an object hitting the surface, or by geological activity on the planet. A crater has classically been described as: "a bowl-shaped pit that is formed by a volcano, an explosion, or a meteorite impact".

2024年11月21日 · Crater Lake inspires awe. Native Americans witnessed its formation 7,700 years ago, when a violent eruption triggered the collapse of a tall peak. Scientists marvel at its purity—fed by rain and snow, it’s the deepest lake in the USA and one of …

A volcanic crater is an approximately circular depression in the ground caused by volcanic activity. [1] It is typically a bowl-shaped feature containing one or more vents. During volcanic eruptions , molten magma and volcanic gases rise from an underground magma chamber , through a conduit, until they reach the crater's vent, from where the ...

2 天之前 · The volcanic crater lake attracts thousands of visitors each year. Those wanting to enjoy the deepest lake in the U.S. will need to schedule a visit soon, before access closes for more than two ...

The meaning of CRATER is the bowl-shaped depression around the orifice of a volcano. How to use crater in a sentence.

2 天之前 · Crater Lake National Park's Cleetwood Cove Trail, the only legal access point to the lake, will close in 2026 for a construction project. The closure is expected to last for at least two years ...

2024年4月17日 · A crater is a bowl-shaped depression, or hollowed-out area, produced by the impact of a meteorite, volcanic activity, or an explosion. Impact Craters Craters produced by the collision of a meteorite with Earth (or another planet or moon ) are called impact craters.

1 天前 · PORTLAND, Ore. — Crater Lake’s most popular trail and the only one that has access to the water will be closed to the public for up to three years for construction, beginning in 2026 ...

crater, circular depression in the surface of a planetary body. Most craters are the result of impacts of meteorites or of volcanic explosions.

2 天之前 · This coming summer will be the last chance to swim or take a boat tour in the waters of Crater Lake for three years. Cleetwood Cove Trail, the only legal pathway to the shoreline of the United ...